#ifndef __LINE_H__
#define __LINE_H__

#include <iostream>

using std::cout;
using std::endl;

class Line
{
public:
    Line(int x1, int y1, int x2, int y2);
    void printLine() const;
    ~Line();

    class LinePimpl;//声明类

private:
    LinePimpl *_pimpl;
};


#endif
